GB804199A - Organosiloxane compositions - Google Patents

Organosiloxane compositions

Info

Publication number
GB804199A
GB804199A GB2720056A GB2720056A GB804199A GB 804199 A GB804199 A GB 804199A GB 2720056 A GB2720056 A GB 2720056A GB 2720056 A GB2720056 A GB 2720056A GB 804199 A GB804199 A GB 804199A
Authority
GB
United Kingdom
Prior art keywords
per cent
lead
tin
siloxane
blocked
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2720056A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midland Silicones Ltd
Original Assignee
Midland Silicones Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midland Silicones Ltd filed Critical Midland Silicones Ltd
Publication of GB804199A publication Critical patent/GB804199A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/12—Polysiloxanes containing silicon bound to hydrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C08G77/16—Polysiloxanes containing silicon bound to oxygen-containing groups to hydroxyl groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
    • C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/70—Siloxanes defined by use of the MDTQ nomenclature

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Silicon Polymers (AREA)

Abstract

A composition curable to an elastomer at room temperature comprises by weight (1) from 0.01 to less than 5.0 per cent of a siloxane having at least three RHSiO units per molecule, any remaining units being of the general formula R3SiO0,5, in which units each R is a monovalent hydrocarbon radical containing less than 7 carbon atoms, (2) from more than 95 to 99.99 per cent of a polysiloxane having a viscosity of at least 100 cs. at 25 DEG C. and in which all the molecules have at least 2 Si-bonded OH groups attached thereto and in which the average ratio of monovalent hydrocarbon or halogenated hydrocarbon radicals (of less than 8 C atoms) to Si atoms is from 1.9 to 2.0; and (3) as catalyst metal carboxylate or an organometallic compound. Siloxane (1) includes OH-terminated linear polymers, cyclic polymers and triorganosilyl end-blocked linear polymers, e.g. methyl-, phenyl-, ethyl-, butyl-, vinyl- and hexyl-hydrogensiloxanes, and trimethyl end-blocked methylhydrogensiloxane, dimethylhydrogen - terminated methylhydrogensiloxane and triethyl end-blocked phenylhydrogensiloxane. Siloxane (2), which may contain up to 15 per cent by weight of non-hydroxylated siloxanes, may have as Si-bonded radicals methyl, ethyl, butyl, phenyl, tolyl, vinyl, allyl, cyclohexyl, chloromethyl, pentafluoroethyl, tetrafluorocyclobutyl, chlorodifluorovinyl, a ,a ,a - trifluorotolyl, monochlorophenyl and pentabromophenyl radicals. Catalysts specified are ferric benzoate and octoate, dibutyl tin diacetate, lead, manganese and cupric octoates, monobutyl tin trilaurate and iron cyclohexoate; tetralauryl tin, tetraphenyl lead, tetraphenyl tin, tetraethyl lead and tetraallyl lead, and are used in amount, e.g. of 0.001 to 1 per cent by weight of the siloxanes. If desired, curing may be effected by heating up to 90 DEG C., and fillers, e.g. silica, diatomaceous earth, glass, asbestos, carbon black, organic fibres, metal oxides and clays, may be added. Examples are given. Uses.-The products are used in making dental impressions and impressions for patternmaking; for coating textiles and paper, as described in Specification 804,198; in the treatment of wool; and for casting or moulding articles for use as electrical insulation, heatresistant ducts, seals for closures and de-icing devices on aircraft. Specification 767,797 also is referred to.
GB2720056A 1955-12-22 1956-09-05 Organosiloxane compositions Expired GB804199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55463655A 1955-12-22 1955-12-22

Publications (1)

Publication Number Publication Date
GB804199A true GB804199A (en) 1958-11-12

Family

ID=24214105

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2720056A Expired GB804199A (en) 1955-12-22 1956-09-05 Organosiloxane compositions

Country Status (2)

Country Link
DE (1) DE1469903A1 (en)
GB (1) GB804199A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153169B (en) * 1959-02-19 1963-08-22 Wacker Chemie Gmbh Process for the production of elastomeric molded parts from organopolysiloxane molding compounds
US3518325A (en) * 1969-04-01 1970-06-30 Dow Corning Polysiloxane release coatings
US5439677A (en) * 1989-07-24 1995-08-08 The Dial Corp. Compositions and methods for treating hair using a mixture of polysiloxanes
WO2002042150A1 (en) * 2000-11-27 2002-05-30 Goodrich Corporation Aircraft deicer
GB2466486A (en) * 2008-12-23 2010-06-30 Dow Corning Moisture curable composition
EP2246062A1 (en) 2005-07-19 2010-11-03 The Population Council, Inc. Methods and compositions for emergency contraception using endothelin receptor antagonists
US8753667B2 (en) 2009-07-21 2014-06-17 The Population Council, Inc. Multi-layered gradient vaginal ring

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923705A (en) * 1974-10-30 1975-12-02 Dow Corning Method of preparing fire retardant siloxane foams and foams prepared therefrom

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153169B (en) * 1959-02-19 1963-08-22 Wacker Chemie Gmbh Process for the production of elastomeric molded parts from organopolysiloxane molding compounds
US3518325A (en) * 1969-04-01 1970-06-30 Dow Corning Polysiloxane release coatings
US5439677A (en) * 1989-07-24 1995-08-08 The Dial Corp. Compositions and methods for treating hair using a mixture of polysiloxanes
WO2002042150A1 (en) * 2000-11-27 2002-05-30 Goodrich Corporation Aircraft deicer
EP2246062A1 (en) 2005-07-19 2010-11-03 The Population Council, Inc. Methods and compositions for emergency contraception using endothelin receptor antagonists
GB2466486A (en) * 2008-12-23 2010-06-30 Dow Corning Moisture curable composition
US8753667B2 (en) 2009-07-21 2014-06-17 The Population Council, Inc. Multi-layered gradient vaginal ring

Also Published As

Publication number Publication date
DE1469903A1 (en) 1969-01-23

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